/*
* Copyright (c) 2008, 2009, 2010, 2011
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include <stdio.h>
#include <stdarg.h>
#include <inttypes.h>
#import "OFObject.h"
#import "OFSerialization.h"
#import "macros.h"
@class OFConstantString;
typedef uint32_t of_unichar_t;
/**
* \brief The encoding of a string.
*/
typedef enum of_string_encoding_t {
OF_STRING_ENCODING_UTF_8,
OF_STRING_ENCODING_ISO_8859_1,
OF_STRING_ENCODING_ISO_8859_15,
OF_STRING_ENCODING_WINDOWS_1252,
OF_STRING_ENCODING_AUTODETECT = 0xFF
} of_string_encoding_t;
#ifdef __cplusplus
extern "C" {
#endif
extern int of_string_check_utf8(const char*, size_t, size_t*);
extern size_t of_string_unicode_to_utf8(of_unichar_t, char*);
extern size_t of_string_utf8_to_unicode(const char*, size_t, of_unichar_t*);
extern size_t of_string_position_to_index(const char*, size_t);
extern size_t of_string_index_to_position(const char*, size_t, size_t);
extern size_t of_unicode_string_length(const of_unichar_t*);
extern size_t of_utf16_string_length(const uint16_t*);
#ifdef __cplusplus
}
#endif
@class OFArray;
@class OFURL;
/**
* \brief A class for handling strings.
*
* <b>Warning:</b> If you add methods to OFString using a category, you are not
* allowed to access the ivars directly, as these might be still uninitialized
* for a constant string and get initialized on the first message! Therefore,
* you should use the corresponding methods to get the ivars, which ensures the
* constant string is initialized.
*/
@interface OFString: OFObject <OFCopying, OFMutableCopying, OFComparing,
OFSerialization>
{
/*
* The ivars have to be like this because OFConstantString bases on
* OFString.
*
* The compiler generates an instance with a const char* and a size_t
* for each constant string. We change the const char* to point to our
* struct on the first call to a constant string so we can have more
* than those two ivars.
*/
struct of_string_ivars {
char *cString;
size_t cStringLength;
BOOL isUTF8;
size_t length;
} *restrict s;
/*
* Unused in OFString, however, OFConstantString sets this to SIZE_MAX
* once it allocated and initialized the struct.
*/
size_t initialized;
}
#ifdef OF_HAVE_PROPERTIES
@property (readonly) const char *cString;
@property (readonly) size_t cStringLength;
@property (readonly) size_t length;
#endif
/**
* \return A new autoreleased OFString
*/
+ string;
/**
* Creates a new OFString from a UTF-8 encoded C string.
*
* \param cString A UTF-8 encoded C string to initialize the OFString with
* \return A new autoreleased OFString
*/
+ stringWithCString: (const char*)cString;
/**
* Creates a new OFString from a C string with the specified encoding.
*
* \param string A C string to initialize the OFString with
* \param encoding The encoding of the C string
* \return A new autoreleased OFString
*/
+ stringWithCString: (const char*)cString
encoding: (of_string_encoding_t)encoding;
/**
* Creates a new OFString from a C string with the specified encoding and
* length.
*
* \param cString A C string to initialize the OFString with
* \param encoding The encoding of the C string
* \param cStringLength The length of the C string
* \return A new autoreleased OFString
*/
+ stringWithCString: (const char*)cString
encoding: (of_string_encoding_t)encoding
length: (size_t)cStringLength;
/**
* Creates a new OFString from a UTF-8 encoded C string with the specified
* length.
*
* \param cString A UTF-8 encoded C string to initialize the OFString with
* \param cStringLength The length of the UTF-8 encoded C string
* \return A new autoreleased OFString
*/
+ stringWithCString: (const char*)cString
length: (size_t)cStringLength;
/**
* Creates a new OFString from another string.
*
* \param string A string to initialize the OFString with
* \return A new autoreleased OFString
*/
+ stringWithString: (OFString*)string;
/**
* Creates a new OFString from a unicode string.
*
* \param string The unicode string
* \return A new autoreleased OFString
*/
+ stringWithUnicodeString: (of_unichar_t*)string;
/**
* Creates a new OFString from a unicode string, assuming the specified byte
* order if no BOM is found.
*
* \param string The unicode string
* \param byteOrder The byte order to assume if there is no BOM
* \return A new autoreleased OFString
*/
+ stringWithUnicodeString: (of_unichar_t*)string
byteOrder: (of_endianess_t)byteOrder;
/**
* Creates a new OFString from a unicode string with the specified length.
*
* \param string The unicode string
* \param length The length of the unicode string
* \return A new autoreleased OFString
*/
+ stringWithUnicodeString: (of_unichar_t*)string
length: (size_t)length;
/**
* Creates a new OFString from a unicode string with the specified length,
* assuming the specified byte order if no BOM is found.
*
* \param string The unicode string
* \param byteOrder The byte order to assume if there is no BOM
* \param length The length of the unicode string
* \return A new autoreleased OFString
*/
+ stringWithUnicodeString: (of_unichar_t*)string
byteOrder: (of_endianess_t)byteOrder
length: (size_t)length;
/**
* Creates a new OFString from a UTF-16 encoded string.
*
* \param string The UTF-16 string
* \return A new autoreleased OFString
*/
+ stringWithUTF16String: (uint16_t*)string;
/**
* Creates a new OFString from a UTF-16 encoded string, assuming the specified
* byte order if no BOM is found.
*
* \param string The UTF-16 string
* \param byteOrder The byte order to assume if there is no BOM
* \return A new autoreleased OFString
*/
+ stringWithUTF16String: (uint16_t*)string
byteOrder: (of_endianess_t)byteOrder;
/**
* Creates a new OFString from a UTF-16 encoded string with the specified
* length.
*
* \param string The UTF-16 string
* \param length The length of the unicode string
* \return A new autoreleased OFString
*/
+ stringWithUTF16String: (uint16_t*)string
length: (size_t)length;
/**
* Creates a new OFString from a UTF-16 encoded string with the specified
* length, assuming the specified byte order if no BOM is found.
*
* \param string The UTF-16 string
* \param byteOrder The byte order to assume if there is no BOM
* \param length The length of the unicode string
* \return A new autoreleased OFString
*/
+ stringWithUTF16String: (uint16_t*)string
byteOrder: (of_endianess_t)byteOrder
length: (size_t)length;
/**
* Creates a new OFString from a format string.
*
* See printf for the format syntax. As an addition, %@ is available as format
* specifier for objects.
*
* \param format A string used as format to initialize the OFString
* \return A new autoreleased OFString
*/
+ stringWithFormat: (OFConstantString*)format, ...;
/**
* Creates a new OFString containing the constructed specified path.
*
* \param firstComponent The first component of the path
* \return A new autoreleased OFString
*/
+ stringWithPath: (OFString*)firstComponent, ...;
/**
* Creates a new OFString with the contents of the specified UTF-8 encoded file.
*
* \param path The path to the file
* \return A new autoreleased OFString
*/
+ stringWithContentsOfFile: (OFString*)path;
/**
* Creates a new OFString with the contents of the specified file in the
* specified encoding.
*
* \param path The path to the file
* \param encoding The encoding of the file
* \return A new autoreleased OFString
*/
+ stringWithContentsOfFile: (OFString*)path
encoding: (of_string_encoding_t)encoding;
/**
* Creates a new OFString with the contents of the specified URL.
*
* If the URL's scheme is file, it tries UTF-8 encoding.
*
* If the URL's scheme is http(s), it tries to detect the encoding from the HTTP
* headers. If it could not detect the encoding using the HTTP headers, it tries
* UTF-8.
*
* \param URL The URL to the contents for the string
* \return A new autoreleased OFString
*/
+ stringWithContentsOfURL: (OFURL*)URL;
/**
* Creates a new OFString with the contents of the specified URL in the
* specified encoding.
*
* \param URL The URL to the contents for the string
* \param encoding The encoding to assume
* \return A new autoreleased OFString
*/
+ stringWithContentsOfURL: (OFURL*)URL
encoding: (of_string_encoding_t)encoding;
/**
* Initializes an already allocated OFString from a UTF-8 encoded C string.
*
* \param cString A UTF-8 encoded C string to initialize the OFString with
* \return An initialized OFString
*/
- initWithCString: (const char*)cString;
/**
* Initializes an already allocated OFString from a C string with the specified
* encoding.
*
* \param cString A C string to initialize the OFString with
* \param encoding The encoding of the C string
* \return An initialized OFString
*/
- initWithCString: (const char*)cString
encoding: (of_string_encoding_t)encoding;
/**
* Initializes an already allocated OFString from a C string with the specified
* encoding and length.
*
* \param cString A C string to initialize the OFString with
* \param encoding The encoding of the C string
* \param cStringLength The length of the C string
* \return An initialized OFString
*/
- initWithCString: (const char*)cString
encoding: (of_string_encoding_t)encoding
length: (size_t)cStringLength;
/**
* Initializes an already allocated OFString from a UTF-8 encoded C string with
* the specified length.
*
* \param cString A UTF-8 encoded C string to initialize the OFString with
* \param cStringLength The length of the UTF-8 encoded C string
* \return An initialized OFString
*/
- initWithCString: (const char*)cString
length: (size_t)cStringLength;
/**
* Initializes an already allocated OFString with another string.
*
* \param string A string to initialize the OFString with
* \return An initialized OFString
*/
- initWithString: (OFString*)string;
/**
* Initializes an already allocated OFString with a unicode string.
*
* \param string The unicode string
* \return An initialized OFString
*/
- initWithUnicodeString: (of_unichar_t*)string;
/**
* Initializes an already allocated OFString with a unicode string, assuming the
* specified byte order if no BOM is found.
*
* \param string The unicode string
* \param byteOrder The byte order to assume if there is no BOM
* \return An initialized OFString
*/
- initWithUnicodeString: (of_unichar_t*)string
byteOrder: (of_endianess_t)byteOrder;
/**
* Initializes an already allocated OFString with a unicode string with the
* specified length.
*
* \param string The unicode string
* \param length The length of the unicode string
* \return An initialized OFString
*/
- initWithUnicodeString: (of_unichar_t*)string
length: (size_t)length;
/**
* Initializes an already allocated OFString with a unicode string with the
* specified length, assuming the specified byte order if no BOM is found.
*
* \param string The unicode string
* \param byteOrder The byte order to assume if there is no BOM
* \param length The length of the unicode string
* \return An initialized OFString
*/
- initWithUnicodeString: (of_unichar_t*)string
byteOrder: (of_endianess_t)byteOrder
length: (size_t)length;
/**
* Initializes an already allocated OFString with a UTF-16 string.
*
* \param string The UTF-16 string
* \return An initialized OFString
*/
- initWithUTF16String: (uint16_t*)string;
/**
* Initializes an already allocated OFString with a UTF-16 string, assuming the
* specified byte order if no BOM is found.
*
* \param string The UTF-16 string
* \param byteOrder The byte order to assume if there is no BOM
* \return An initialized OFString
*/
- initWithUTF16String: (uint16_t*)string
byteOrder: (of_endianess_t)byteOrder;
/**
* Initializes an already allocated OFString with a UTF-16 string with the
* specified length.
*
* \param string The UTF-16 string
* \param length The length of the UTF-16 string
* \return An initialized OFString
*/
- initWithUTF16String: (uint16_t*)string
length: (size_t)length;
/**
* Initializes an already allocated OFString with a UTF-16 string with the
* specified length, assuming the specified byte order if no BOM is found.
*
* \param string The UTF-16 string
* \param byteOrder The byte order to assume if there is no BOM
* \param length The length of the UTF-16 string
* \return An initialized OFString
*/
- initWithUTF16String: (uint16_t*)string
byteOrder: (of_endianess_t)byteOrder
length: (size_t)length;
/**
* Initializes an already allocated OFString with a format string.
*
* See printf for the format syntax. As an addition, %@ is available as format
* specifier for objects.
*
* \param format A string used as format to initialize the OFString
* \return An initialized OFString
*/
- initWithFormat: (OFConstantString*)format, ...;
/**
* Initializes an already allocated OFString with a format string.
*
* See printf for the format syntax. As an addition, %@ is available as format
* specifier for objects.
*
* \param format A string used as format to initialize the OFString
* \param arguments The arguments used in the format string
* \return An initialized OFString
*/
- initWithFormat: (OFConstantString*)format
arguments: (va_list)arguments;
/**
* Initializes an already allocated OFString with the constructed specified
* path.
*
* \param firstComponent The first component of the path
* \return A new autoreleased OFString
*/
- initWithPath: (OFString*)firstComponent, ...;
/**
* Initializes an already allocated OFString with the constructed specified
* path.
*
* \param firstComponent The first component of the path
* \param arguments A va_list with the other components of the path
* \return A new autoreleased OFString
*/
- initWithPath: (OFString*)firstComponent
arguments: (va_list)arguments;
/**
* Initializes an already allocated OFString with the contents of the specified
* file in the specified encoding.
*
* \param path The path to the file
* \return An initialized OFString
*/
- initWithContentsOfFile: (OFString*)path;
/**
* Initializes an already allocated OFString with the contents of the specified
* file in the specified encoding.
*
* \param path The path to the file
* \param encoding The encoding of the file
* \return An initialized OFString
*/
- initWithContentsOfFile: (OFString*)path
encoding: (of_string_encoding_t)encoding;
/**
* Initializes an already allocated OFString with the contents of the specified
* URL.
*
* If the URL's scheme is file, it tries UTF-8 encoding.
*
* If the URL's scheme is http(s), it tries to detect the encoding from the HTTP
* headers. If it could not detect the encoding using the HTTP headers, it tries
* UTF-8.
*
* \param URL The URL to the contents for the string
* \return An initialized OFString
*/
- initWithContentsOfURL: (OFURL*)URL;
/**
* Initializes an already allocated OFString with the contents of the specified
* URL in the specified encoding.
*
* \param URL The URL to the contents for the string
* \param encoding The encoding to assume
* \return An initialized OFString
*/
- initWithContentsOfURL: (OFURL*)URL
encoding: (of_string_encoding_t)encoding;
/**
* \return The OFString as a UTF-8 encoded C string
*/
- (const char*)cString;
/**
* \return The length of the string in Unicode characters
*/
- (size_t)length;
/**
* \return The length of the string which cString would return
*/
- (size_t)cStringLength;
/**
* Compares the OFString to another OFString without caring about the case.
*
* \param otherString A string to compare with
* \return An of_comparison_result_t
*/
- (of_comparison_result_t)caseInsensitiveCompare: (OFString*)otherString;
/**
* \param index The index of the Unicode character to return
* \return The Unicode character at the specified index
*/
- (of_unichar_t)characterAtIndex: (size_t)index;
/**
* \param string The string to search
* \return The index of the first occurrence of the string or OF_INVALID_INDEX
* if it was not found
*/
- (size_t)indexOfFirstOccurrenceOfString: (OFString*)string;
/**
* \param string The string to search
* \return The index of the last occurrence of the string or OF_INVALID_INDEX if
* it was not found
*/
- (size_t)indexOfLastOccurrenceOfString: (OFString*)string;
/**
* \param string The string to search
* \return Whether the string contains the specified string
*/
- (BOOL)containsString: (OFString*)string;
/**
* \param range The range of the substring
* \return The substring as a new autoreleased OFString
*/
- (OFString*)substringWithRange: (of_range_t)range;
/**
* Creates a new string by appending another string.
*
* \param string The string to append
* \return A new autoreleased OFString with the specified string appended
*/
- (OFString*)stringByAppendingString: (OFString*)string;
/**
* Creates a new string by prepending another string.
*
* \param string The string to prepend
* \return A new autoreleased OFString with the specified string prepended
*/
- (OFString*)stringByPrependingString: (OFString*)string;
/**
* Creates a new string by replacing the occurrences of the specified string
* with the specified replacement.
*
* \param string The string to replace
* \param replacement The string with which it should be replaced
* \return A new string with the occurrences of the specified string replaced
*/
- (OFString*)stringByReplacingOccurrencesOfString: (OFString*)string
withString: (OFString*)replacement;
/**
* \return The string in uppercase
*/
- (OFString*)uppercaseString;
/**
* \return The string in lowercase
*/
- (OFString*)lowercaseString;
/**
* Creates a new string by deleting leading whitespaces.
*
* \return A new autoreleased OFString with leading whitespaces deleted
*/
- (OFString*)stringByDeletingLeadingWhitespaces;
/**
* Creates a new string by deleting trailing whitespaces.
*
* \return A new autoreleased OFString with trailing whitespaces deleted
*/
- (OFString*)stringByDeletingTrailingWhitespaces;
/**
* Creates a new string by deleting leading and trailing whitespaces.
*
* \return A new autoreleased OFString with leading and trailing whitespaces
* deleted
*/
- (OFString*)stringByDeletingEnclosingWhitespaces;
/**
* Checks whether the string has the specified prefix.
*
* \param prefix The prefix to check for
* \return A boolean whether the string has the specified prefix
*/
- (BOOL)hasPrefix: (OFString*)prefix;
/**
* Checks whether the string has the specified suffix.
*
* \param suffix The suffix to check for
* \return A boolean whether the string has the specified suffix
*/
- (BOOL)hasSuffix: (OFString*)suffix;
/**
* Splits an OFString into an OFArray of OFStrings.
*
* \param delimiter The delimiter for splitting
* \return An autoreleased OFArray with the split string
*/
- (OFArray*)componentsSeparatedByString: (OFString*)delimiter;
/**
* \return The components of the path
*/
- (OFArray*)pathComponents;
/**
* \return The last component of the path
*/
- (OFString*)lastPathComponent;
/**
* \return The directory name of the path
*/
- (OFString*)stringByDeletingLastPathComponent;
/**
* Returns the decimal value of the string as an intmax_t or throws an
* OFInvalidEncodingException if the string contains any non-number characters.
* Leading and trailing whitespaces are ignored.
*
* If the number is too big to fit into an intmax_t, an OFOutOfRangeException
* is thrown.
*
* \return An intmax_t with the value of the string
*/
- (intmax_t)decimalValue;
/**
* Returns the hexadecimal value of the string as an uintmax_t or throws an
* OFInvalidEncodingException if the string contains any non-number characters.
* Leading and trailing whitespaces are ignored.
*
* If the number is too big to fit into an uintmax_t, an OFOutOfRangeException
* is thrown.
*
* \return A uintmax_t with the value of the string
*/
- (uintmax_t)hexadecimalValue;
/**
* Returns the float value of the string as a float or throws an
* OFInvalidEncodingException if the string contains any non-number characters.
*
* \return A float with the value of the string
*/
- (float)floatValue;
/**
* Returns the double value of the string as a float or throws an
* OFInvalidEncodingException if the string contains any non-number characters.
*
* \return A double with the value of the string
*/
- (double)doubleValue;
/**
* Returns the string as an array of of_unichar_t.
*
* The result is valid until the autorelease pool is released. If you want to
* use the result outside the scope of the current autorelease pool, you have to
* copy it.
*
* \return The string as an array of Unicode characters
*/
- (of_unichar_t*)unicodeString;
/**
* Writes the string into the specified file using UTF-8 encoding.
*
* \param path The path of the file to write to
*/
- (void)writeToFile: (OFString*)path;
@end
#import "OFConstantString.h"
#import "OFMutableString.h"
#import "OFString+Hashing.h"
#import "OFString+Serialization.h"
#import "OFString+URLEncoding.h"
#import "OFString+XMLEscaping.h"
#import "OFString+XMLUnescaping.h"